CFM Calculation Formula in HVAC || How to Calculate CFM of a Room in Urdu

[@TanweerAhmed]

Note: Formula no.1 reference, this is given in ashrae handbook 2021, chapter no. 16 ventilation and infiltration, page no. 16.28 in office building examples.

[@Muhammad-ur9yl]

u r genius ❤❤❤ Sir G...The way u make summary and explain are amazing...Sir G app nai itna kaisai seekha hai app guru hai mashallah 🙏 ❤

[@TanweerAhmed]

Alhamdullah, I have learnt with the grace of Allah ☝️.

[@umohib206]

Nice video Sir very informative

[@TanweerAhmed]

Thanks

[@user-wq2sr2wp4x]

The knowledge you are sharing is really great...Thanks

[@TanweerAhmed]

Welcome

[@andresmata3727]

Great video. Which of the formulas do I have to use know the required cool air (primary air) on a space? Thanks

[@TanweerAhmed]

Watch complete video for application of formulae

[@yasiralam7277]

Sir, Dry types connection 2.5×2.5×4" ( fire Fighting kaha use hota hai ye kya hai plz reply fast)

[@TanweerAhmed]

It is hose connection valves with outlet 2.5 inches x outlet 2.5 inches x inlet 4 inches pipe connection. Dry type means used in cold area.

[@sajidlilgar1863]

Great sar outstanding Alla se dua hai ki app ke sath kam karne ka moka mile

[@TanweerAhmed]

Allah aap ki duwa kabool farmai..Aamin

[@md.shahid4305]

Sir agar formula 1 me CFM dekha jaye Airflow CFM 80 hai to usse Kya samajha jaye ek hints chahiye tha Isliye ki Mera jehan iske baad TR ke baare me soch Raha hai.

[@TanweerAhmed]

🙄🤔

[@akbarshaibnuaboobacker8913]

We can use this formula to select fcu for a room?

[@TanweerAhmed]

FCU selects cooling/heating load capacity and then calculates airflow accordingly. Alone air ventilation formula isn't sufficient to select an FCU (Fan Coil Unit) for a room due to various factors.

[@SkyRider993]

Sir share the table for 100 percent ventilation for a storage hall I did not find any table having ACH for storage hall, Ashrae Table 6.1 shares only cfm per ft2, when we calculate CFM using only this total number of CFM value comes very low which is not acceptable for very large hall

[@TanweerAhmed]

Let me check

[@ak-lr5jc]

Assalam o Allikum...can you plz share the ACH table used for formula # 1...

[@TanweerAhmed]

W.Salam, available on Google search

[@ak-lr5jc]

@@TanweerAhmed JazakALLAH...you have been extreamly helpful in transfering MEP knowledge to others...May ALLAH SWT bless you for this

[@gagan4132]

Sir Air change karney ka method kya hoga usually We do not open door in AC room

[@TanweerAhmed]

If you have single split AC then you should add through small fan or window etc. If supply air is from AHU then fresh air will be added there.

[@md.shahid4305]

Assalamualaikum sir ham duct ka area ko nikalne ki kya jaroorat padti hai aur iska Kya kaam padtaa hai.

[@TanweerAhmed]

1. Duct area calculate karna zaroori hota hai taake duct sheet ki quantity ka andaza lagaya ja sake. 2. Duct area calculate karna airflow ko maintain karne ke liye bhi important hota hai.

[@Muhammad-ur9yl]

Sir G very good explain ...Sir kia app apni video ki Playlist bana saktai hai koi bhi 2 choti example lai kar family house and hotel jis mai ventilation duct ki design calculate karna size, supply air, exhaust air, fresh air from kitchen and toilet, Air handling unit Kitna chaia... I mean pora chota project explain karai basic se end taak...it will be really help to understand complete project..

[@TanweerAhmed]

Insha'Allah

[@Muhammad-ur9yl]

Sir G i am following and learning from ur video more then 2 years ...U really explained very good and especiallay in a easy way. It really help a lot to learn from your channel. I was waiting a long time when u will explain CFM per room and luckily I have learned today also ...Many many thanks ...Now I hope to see some projects example of ventilation as u said inshallah....

[@TanweerAhmed]

Insha'Allah I will work on your comments

[@abulfaraz6687]

Sir You said 7.2 instead of 7.5 And if 7.5 CFM/person is correct then I think the no 3 formula need to be correct...if am wrong please correct me

[@TanweerAhmed]

@@abulfaraz66877.5 value in 3rd formula is ok

[@shumaila4774]

Sir electrical services ki video bnaye..

[@TanweerAhmed]

Ok noted

[@coolwindAC]

How yo know about grill size

[@TanweerAhmed]

Basic term is airflow (CFM) for grill and then size with different factors like NC, Velocity pressure, Neg. Static pressure, etc,

[@jimmyjohn4070]

👍

[@TanweerAhmed]

❤️

[@TauseefAhmad-tq7ck]

Sir Very informative and to the point video Any wahstap number through which we can reach you?

[@TanweerAhmed]

Thank you

[@Muhammad-ur9yl]

Sir G I need also your whatsapp number. please make also whatsapp group, where u can share also some topics of heating ventilation air conditioning system...Whatsapp is also easy platform to contact or discuss from all participants views.

[@TanweerAhmed]

@@Muhammad-ur9yl visit my community tab for joining telegram group.